Map

Sites included in this analysis.

OGR data source with driver: ESRI Shapefile Source: “C:_Task_Force_eco_l3”, layer: “ny_eco_l3” with 9 features It has 14 fields

Violin Plot

TableGrob (1 x 1) “arrange”: 1 grobs z cells name grob 1 1 (1-1,1-1) arrange gtable[arrange]

tables

General Statistics

Percentage of sites with at least one excursion. This is simply the number of sites with excursions divided by the total number of sites and multiplied by 100. For class A waters, the excursion level is 250 mg/L. When I examined all class waters, I used EPA’s 304a acute threshold at 230 mg/L.

Sampling Frequencies

Number of chloride samples [1] 6150

number of chloride samples that don’t have rejected values [1] 6034

number of locations with accepted data [1] 797

number of accepted samples that were non-detects [1] 394

Number of locations with multiple samples [1] 562